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In the 1940s, improved microphone design allowed a more intimate singing style and, ten or twenty years later, inexpensive and more durable 45 rpm records for singles "revolutionized the manner in which pop has been disseminated", which helped to move pop music to "a record/radio/film star system". Another technological change was the widespread availability of television in the 1950s with televised performances, forcing "pop stars had to have a visual presence". In the 1960s, the introduction of inexpensive, portable transistor radios meant that teenagers in the developed world could listen to music outside of the home. By the early 1980s, the promotion of pop music had been greatly affected by the rise of music television channels like MTV, which "favoured those artists such as Michael Jackson and Madonna who had a strong visual appeal" and are considered King and Queen of Pop. There have been many Kings of Pop during different decades, some including Frank Sinatra and Elvis Presley.

One of the pop music styles that developed alongside other music styles is Latin pop, which rose in popularity in the US during the 1950s with early rock and roll success Ritchie Valens. Later, as Los Lobos garnered major Chicano rock popularity during the 1970s and 1980s, musician Selena saw large-scale pop music presence as the 1980s and 1990s progressed, along with crossover appeal with fans of Tejano music pioneers Lydia Mendoza and Little Joe. With later Hispanic and Latino Americans seeing success within pop music charts, 1990s pop successes stayed popular in both their original genres and in broader pop music. Latin pop hit singles, such as "Macarena" by Los del Río and "Despacito" by Luis Fonsi, have seen record-breaking success on worldwide pop music charts. Taking the top spot, international megastar Bad Bunny was the most-streamed artist for 2021 with worldwide success.